MapReduce——分布式文件计算系统

yarn.nodemanager.aux-services
mapreduce_shuffle

yarn.resourcemanager.ha.enabled是否开启高可用
true


yarn.resourcemanager.cluster-id
cluster1


yarn.resourcemanager.ha.rm-ids逻辑名称
rm1,rm2


yarn.resourcemanager.hostname.rm1
slave2


yarn.resourcemanager.hostname.rm2
slave3


yarn.resourcemanager.zk-address
slave1:2181,slave2:2181,slave3:2181

分发配置文件到slave1、2、3
scp mapred-site.xml yarn-site.xml slave1:/usr/local/src/hadoop-2.6.5/etc/hadoop

slave2 slave3免密钥登陆
cat id_rsa.pub >> authorized_keys 
scp id_rsa.pub slave3:/root/.ssh/slave2.pub

2、开始启动集群
启动zookeeper： zkServer.sh start
启动hdfs： start-dfs.sh
启动yarn：start-yarn.sh

slave2 slave3启动Resourcemanager: yarn-daemon.sh start resourcemanager

8088端口可查看mapreduce相关情况：

利用框架jar包封装的单词统计样例测试：
hadoop jar hadoop-mapreduce-examples-2.6.5.jar wordcount /user/root/test.txt /usr（输出目录）

关闭集群：
slave2、3：yarn-daemon.sh stop resourcemanager

master:stop-all.sh